JP7011847B2 - Mixed refrigerant production equipment and mixed refrigerant production method - Google Patents

Description

According to the present invention, when the refrigerant used in the heat pump system is manufactured by mixing several kinds of substances, the heat pump system is filled with a device for producing the refrigerant by adjusting the mixing ratio thereof, a container for containing the mixed refrigerant, and a mixed refrigerant. Regarding.

Patent Document 1 discloses a method for producing a hydrocarbon mixed refrigerant. The raw material with the lowest filling pressure in the raw material container is first introduced into the evacuated mixing container, and the raw material introduced after the second is 0.3 megapascals when the filling pressure of the raw material container is 0.3 megapascals from the filling pressure of the raw material container introduced immediately before. The basic process is to adjust and introduce the product so that it will be higher than the above.
Patent Document 2 discloses a hydrocarbon mixed refrigerant that enables energy saving, prevention of global warming, significant reduction in refrigerant disposal cost, and reduction in refrigerant filling amount.
Patent Document 3 discloses a replenishing mixed refrigerant capable of predicting a change in the composition ratio of the non-azeotropic refrigerant in advance, recovering the composition ratio at the time of filling, and preventing deterioration of the performance of the refrigerating circuit, and a method for producing the same. Has been done.
Patent Document 4 discloses a heat pump system capable of uniformly dispersing a two-liquid separated non-azeotropic mixed refrigerant. Specifically, it has a lower heat transfer tube, an upper heat transfer tube, and a connecting tube connecting them.
Patent Document 5 discloses a refrigerant container in which the composition does not change even when the remaining amount is low and it is not necessary to check the remaining amount when charging is performed. Specifically, a cylinder opening is formed at the bottom of the container body, which can be divided into a lower chamber and an upper chamber inside, and a partition piston that can move up and down in the container body is incorporated.
Patent Document 6 discloses a method capable of filling a non-azeotropic mixed refrigerant without causing a composition change and without causing a failure in a compressor. Specifically, a cylinder is connected to the refrigerant pipe that connects the compressor and the indoor heat exchanger via a three-way valve, the air conditioner is cooled and the electric expansion valve is adjusted to control the degree of superheat, and then the cylinder is used. It is filled with a non-azeotropic mixed refrigerant in a liquid state.
Patent Document 7 discloses a method of filling a non-azeotropic mixed refrigerant without causing a composition change and without causing a compressor failure. Specifically, a cylinder is connected to the inlet side of the accumulator arranged on the suction side of the compressor, and the non-azeotropic mixed refrigerant in a liquid state is added to the capacity of the accumulator from the cylinder into the refrigerant circuit while operating the refrigeration operation. It is filled by a predetermined amount according to the amount.
Patent Document 8 discloses a method of subdividing and filling a non-azeotropic mixed refrigerant. Specifically, the gas phase or liquid phase of the subdivision refrigerant in the refrigerant storage tank is subdivided and filled while being conductive with the gas phase of the adjustment refrigerant having a composition substantially equivalent to that of the subdivision refrigerant.
Patent Document 9 discloses a filling method in which the composition change that occurs during transfer filling is kept within the allowable range of the refrigerant performance. Specifically, it is extracted from the liquid phase in the container on the supply side and transferred and filled.
Patent Document 10 discloses a filling method in which the composition change that occurs during transfer filling is kept within the allowable range of the refrigerant performance. Specifically, at 40 ° C. or lower, the liquid phase in the container on the supply side is extracted and transferred and filled.
Patent Document 11 discloses a refrigeration cycle provided with a gas-liquid mixing device. This is intended to improve the operating efficiency. As the gas-liquid mixing device in Patent Document 1, a device using a decompression device for adjusting the dryness, a refrigerant introduction / discharge pipe, and a U-shaped pipe has been proposed.
Patent Document 12 discloses an apparatus for recombination of impurities contained in a refrigerant. Impurities are cut by a spiral groove provided on the inner surface of the cylindrical housing and recombined to the refrigerant composition.
Patent Document 13 discloses a stirring device in a heat pump system. A spiral spring is provided inside the cylindrical housing so that it can move up and down.
Patent Document 14 discloses a liquefaction promoting device used in a heat pump system. A spring including a conical portion is provided inside a cylindrical housing closed by two end plates, and a winding on the bottom surface of the conical portion of the spring is located near the bottom surface of the end plate.
Patent Document 15 discloses a refrigerant treatment device in a refrigerating and air-conditioning system. A spiral groove is formed inside the cylinder, and a spiral groove is formed on the outer peripheral surface of the pipe portion.
Patent Document 16 discloses a liquefaction promoting device having a structure provided with a spring that can vibrate and swing.

Re-table 2011/132306 Re-table 2009/081673 Japanese Unexamined Patent Publication No. 2008-274183 Japanese Unexamined Patent Publication No. 2007-155175 Japanese Unexamined Patent Publication No. 2000-035195 Japanese Unexamined Patent Publication No. 11-270933 Japanese Unexamined Patent Publication No. 11-21190 Japanese Unexamined Patent Publication No. 11-1245669 Japanese Unexamined Patent Publication No. 10-197108 Japanese Unexamined Patent Publication No. 10-160296 Japanese Patent No. 3055854 Japanese Unexamined Patent Publication No. 2014-161812 Japanese Unexamined Patent Publication No. 2015-212601 Japanese Patent No. 5945377 Japanese Unexamined Patent Publication No. 2017-142061 Japanese Patent No. 6300309

As can be seen in Patent Documents 1 to 10, there is a problem that the composition of the mixed refrigerant changes when it is subdivided or when it is filled in the heat pump system.
In particular, as seen in Patent Document 1 and Patent Document 8, it is necessary to pay attention so that the composition in each cylinder does not differ at the time of shipment.
Further, as seen in Patent Document 5, Patent Document 6, Patent Document 7, Patent Document 9, and Patent Document 10, there is a problem that the composition change that occurs when the cylinder is transferred to the heat pump system is kept within an allowable range.
On the other hand, as seen in Patent Document 4, there is also a problem that the mixed refrigerant should be uniformly dispersed when the heat pump system is operated.
A similar problem can be seen in Patent Document 11. Assuming that the fluid circulating in the heat pump cycle is a mixture of gas and liquid, mixing the gas and liquid can promote liquefaction and thus improve the operating efficiency of the heat pump.
Further, Patent Documents 12 to 15 propose a stirring device having a structure in which a spiral groove or a spiral spring is provided inside a cylindrical container.
Further, Patent Document 16 discloses a liquefaction promoting device having a structure provided with a spring that can vibrate and swing.

First, the composition of the mixed refrigerant contained in the container at the time of shipment from the factory is reliable, second, the composition does not change when the heat pump system is filled, and third, the heat pump system The inventor of the present invention has noticed that homogenization of the mixed refrigerant should be achieved during operation, and that homogenization of the composition of the mixed refrigerant can be an issue at these three stages.

Then, the inventor of the present invention repeated the experiment, thinking that there is a possibility that all of these three problems can be improved by appropriately using the stirring device and the liquefaction promoting device. Finally, he found a useful invention.
An object of the present invention is to homogenize the filling of a container to be subdivided at the time of manufacturing a mixed refrigerant device, to homogenize the composition when filling the mixed refrigerant into the heat pump cycle, and to operate the mixed refrigerant in the heat pump cycle. It is an object of the present invention to provide an apparatus and a method for realizing homogenization of a composition.

The mixed refrigerant production apparatus according to the present invention is
A raw material container that stores the mixed refrigerant in a state of being separated into a liquid phase and a gas phase,
A gas-liquid mixing device that uniformly mixes the liquid phase and the gas phase,
A liquid phase valve that introduces the liquid phase of the mixed refrigerant from the raw material container into the gas-liquid mixing device.
A gas phase valve that introduces the gas phase of the mixed refrigerant from the raw material container into the gas-liquid mixing device.
After operating the gas-liquid mixing device for a predetermined time, it has an introduction valve for transferring the mixed refrigerant in the gas-liquid mixing device to a subdivision container.
As a result, the composition ratio of the mixed refrigerant filled in the subdivided container can be kept within a predetermined allowable range.

The mixed refrigerant production method according to the present invention
The step of introducing the liquid phase and the gas phase of the mixed refrigerant into the gas-liquid mixer, respectively.
The step of operating the gas-liquid mixer for a predetermined time and
It has a step of transferring the mixed refrigerant in the gas-liquid mixing device to a subdivided container and filling it.
As a result, the composition ratio of the mixed refrigerant filled in the subdivided container can be kept within a predetermined allowable range.

The mixed refrigerant container according to the present invention is
A container for storing the mixed refrigerant used in an individual heat pump cycle in an amount suitable for the heat pump cycle and in a composition ratio suitable for the heat pump cycle.
It has two entrances and exits that can be connected in the middle of the piping of the heat pump cycle in a state where opening and closing can be controlled, and one of the two entrances and exits so that it can be operated while being attached even when operating the heat pump cycle. It is characterized by having a structure that guides the fluid entering from the container to exit from the other of the two entrances and exits after moving in the container.
As a result, the refrigerant (and machine oil) passes through the mixed refrigerant container not only when the mixed refrigerant is introduced into the heat pump cycle but also when the heat pump cycle is operated. Therefore, all the mixed refrigerants initially contained in the mixed refrigerant container are efficiently filled in the heat pump cycle with an appropriate composition ratio.

The method of using the mixed refrigerant container according to the present invention is
A bypass installation step that provides a bypass in the middle of the heat pump cycle piping,
A mixed refrigerant container connection step for connecting the two entrances and exits of the mixed refrigerant container in the middle of the piping of the portion provided with the bypass, and
A vacuuming step in which the heat pump cycle is evacuated using the bypass,
A bypass closing step of closing the bypass and switching to the mixed refrigerant container side,
A filling step of gradually opening the valve of the mixed refrigerant container to fill the heat pump cycle with the mixed refrigerant in the mixed refrigerant container so as not to adversely affect the equipment such as the compressor in the heat pump cycle.
Also when operating the heat pump cycle, it is characterized by having an operation step of operating the heat pump cycle so that the mixed refrigerant passes through the mixed refrigerant container.
As a result, the refrigerant (and machine oil) passes through the mixed refrigerant container not only when the mixed refrigerant is introduced into the heat pump cycle but also when the heat pump cycle is operated. Therefore, all the mixed refrigerants initially contained in the mixed refrigerant container are efficiently filled in the heat pump cycle with an appropriate composition ratio.

The mixing refrigerant container with a gas-liquid mixing function according to the present invention is
A container for storing the mixed refrigerant used in an individual heat pump cycle in an amount suitable for the heat pump cycle and in a composition ratio suitable for the heat pump cycle.
It has two entrances and exits that can be connected in the middle of the heat pump cycle piping so that it can be opened and closed.
Further, it is characterized by having a structure having a gas-liquid mixing function inside.
As a result, not only when the mixed refrigerant is introduced into the heat pump cycle, but also when the heat pump cycle is operated, the refrigerant (and machine oil) not only passes through the mixed refrigerant container but also passes through. At this time, gas-liquid mixing is performed, and the composition ratio when the refrigerant circulates in the heat pump cycle is maintained in a good state. Therefore, not only all the mixed refrigerants initially contained in the mixed refrigerant container are efficiently filled in the heat pump cycle at an appropriate composition ratio, but also the heat pump cycle can be made uniform.

The method of using the mixed refrigerant container with the gas-liquid mixing function according to the present invention is as follows.
A bypass installation step that provides a bypass in the middle of the heat pump cycle piping,
A mixed refrigerant container connection step for connecting the two entrances and exits of the mixed refrigerant container in the middle of the piping of the portion provided with the bypass, and
A vacuuming step in which the heat pump cycle is evacuated using the bypass,
A bypass closing step of closing the bypass and switching to the mixed refrigerant container side,
A filling step of gradually opening the valve of the mixed refrigerant container to fill the heat pump cycle with the mixed refrigerant in the mixed refrigerant container so as not to adversely affect the equipment such as the compressor in the heat pump cycle.
It is characterized by having a gas-liquid mixing operation step of operating the heat pump cycle so that the mixed refrigerant passes through the mixed refrigerant container and realizes the gas-liquid mixing function even when the heat pump cycle is operated. And.
As a result, the refrigerant (and machine oil) passes through the mixed refrigerant container and mixes gas and liquid not only when the mixed refrigerant is introduced into the heat pump cycle but also when the heat pump cycle is operated. .. Therefore, not only all the mixed refrigerants initially contained in the mixed refrigerant container are efficiently filled in the heat pump cycle at an appropriate composition ratio, but also the heat pump cycle can be made uniform.

The mixed refrigerant manufacturing apparatus, the mixed refrigerant manufacturing method, the mixed refrigerant container, the mixed refrigerant container usage method, the mixed refrigerant container with the gas-liquid mixing function, and the mixed refrigerant container with the gas-liquid mixing function according to the present invention are used as a refrigerant (and a refrigerating machine oil). Under the theme of homogenizing the composition of the mixed refrigerant by stirring and mixing the fluid including And consistently keep the mixing ratio in proper condition. Therefore, there is an effect of improving the operating efficiency of the heat pump and, by extension, reducing energy.

It is a figure which shows the embodiment of the mixed refrigerant production apparatus which concerns on this invention. It is a figure which shows the shape of the two discs which make up a mixed rotating body, a small chamber, and how to assemble. It is sectional drawing which shows the structure of a mixed rotating body, and the flow of a fluid. It is a figure which shows the variation about the shape of a small chamber. An example of a mixed refrigerant container with a gas-liquid mixing function in which end plates are provided at both ends of a cylindrical container, a tube that penetrates the end plates, and a coil spring that can vibrate (and swing) inside the cylindrical part. It is a figure which shows. .. End plates are provided at both ends of the cylindrical container, a tube that penetrates the end plate and a coil spring that can vibrate (and swing) are provided inside the cylindrical part, and the tube that extends from the bottom is guided. It is a figure which shows an example of the mixing refrigerant container with a gas-liquid mixing function which connected three stacks of flow units. It is a figure which shows an example of the mixing refrigerant container with a gas-liquid mixing function which has the cylindrical container which stored three stacks of a conduction unit body inside, and the outer tub which surrounds the cylindrical container. A cylindrical container containing three stacks of conduction units inside, a coil spring that can vibrate (and swing) around it, and a mixture with a gas-liquid mixing function that has an outer tank that surrounds it. It is a figure which shows an example of a refrigerant container. A cylindrical container containing three stacks of conduction units and an outer tank surrounding the container are provided, and vibration (and rocking) is possible inside the outer tank and outside the cylindrical container. It is a figure which shows an example of the mixing refrigerant container with a gas-liquid mixing function provided with the coil spring. It is a figure which shows the function of the mixing refrigerant container with a gas-liquid mixing function in a heat pump system (heat pump cycle) at the time of cooling and at the time of heating, respectively.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Those having the same reference numerals in the figure have the same configuration and function.

<Embodiment>
≪Mixed refrigerant manufacturing equipment≫
≪Use a rotary gas-liquid mixer≫
FIG. 1 is a diagram showing an embodiment of a mixed refrigerant production apparatus according to the present invention. When the mixing refrigerant is filled from the raw material container 150 to the sorting container 160, the rotary gas-liquid mixing device 101 is used so that the mixing ratio is within the permissible range.
The rotary gas-liquid mixing device 101 in this embodiment has a stirring layer 110, and by rotating a mixing rotating body 130 attached to a rotating shaft 125 connected to a rotary drive source (motor) 120, the inside of the stirring layer 110 The fluid is uniformly mixed. The structure of the mixed rotating body 130 will be described with reference to FIGS. 2 to 4, but the mixed rotating body 130 is provided with a large number of honeycomb-shaped chambers.

FIG. 2 is a diagram showing the shapes of the large-diameter disk 131, the small-diameter disk 132, and the small chamber, which are the two disks constituting the mixed rotating body 130, and how to assemble them. The large-diameter disk 131 drawn above and the small-diameter disk 132 drawn below each have a large number of honeycomb-shaped chambers, and the directions in which they are open face each other 2 Combine two disks and screw them with bolts and nuts. At that time, the honeycomb-shaped chambers are displaced and overlapped. Then, it can be attached to the rotating shaft 125, and a communication hole is formed in the center of the two disks 131 and 132 so that the fluid can pass through. In the example drawn in FIG. 2, the communication hole of the large-diameter disk is small, and the communication hole of the small-diameter disk is large. The diameter of the small-diameter disk 132 is slightly smaller than the diameter of the large-diameter disk 131.

FIG. 3 is a cross-sectional view showing the detailed configuration and fluid flow of the mixed rotating body 130. As shown in FIG. 3, a fluid (a refrigerant in which a gas phase and a liquid phase are mixed) is sucked in from below the central portion of the mixed rotating body, and the fluid advances toward the peripheral portion through a large number of small chambers. At that time, the fluid collides with the wall of the small chamber many times, and the fluid is uniformly mixed by the shearing effect. The fluid inside the stirring layer 110 is appropriately uniformly mixed, and then taken out from the outlet and filled in the subdivision container 160.

FIG. 4 is a diagram showing variations in the shape of the small chamber. FIG. 4A is for a shape in which an equilateral triangle is repeated. FIG. 4B is for a shape that repeats a square. FIG. 4C shows a shape in which a regular octagon is repeated. FIG. 4D shows a shape in which a regular hexagon is repeated.
It should be noted that a stack of several sets (for example, three sets) of the mixed rotating bodies 130 may be used. When used in layers, the large-diameter disks and the small-diameter disks can be overlapped so as to be in contact with each other.

≪Mixed refrigerant manufacturing method≫
The mixed refrigerant production method according to the present invention will be described with reference to FIG. In the raw material container 150, the mixed refrigerant is stored in a state of being separated into a liquid phase and a gas phase. A gas phase valve 151 is provided at the upper end of the raw material container 150, and the raw material container 150 is connected to a rotary gas-liquid mixing device 101 via a pipe via the gas phase valve 151. Further, a pipe is connected from the liquid phase portion of the raw material container 150 to the rotary gas-liquid mixing device 101 in order to supply the liquid phase portion of the raw material, and a liquid phase valve 153 is provided in the middle thereof. There is.
A pressure gauge or a flow meter (not shown) is provided in the vicinity of the gas phase valve 151 and the liquid phase valve 153, and how much gas phase can be obtained by opening the gas phase valve 151 and the liquid phase valve 153, respectively. , It is possible to know whether each of the liquid phases has flowed into the rotary gas-liquid mixing device 101. When the required amounts of the gas phase and the liquid phase with respect to the composition ratio of the target mixed refrigerant enter the rotary gas-liquid mixing device 101, the gas phase valve 151 and the liquid phase valve 153 are closed, respectively. At this time, the introduction valve 159 for the subdivision container is also closed.
Then, the rotation drive source 120 is operated so that the mixed rotating body 130 rotates via the rotation shaft 125. By operating for a predetermined time, the fluids (gas phase and liquid phase) in the rotary gas-liquid mixing device 101 are uniformly mixed. At this time, the piping between the rotary gas-liquid mixing device 101 and the gas phase valve 151, the piping between the rotary gas-liquid mixing device 101 and the liquid phase valve 153, the rotary gas-liquid mixing device 101 and the introduction valve 159. The piping between and, the fluid inside each, is also evenly mixed.
By opening the introduction valve 159, the uniform mixed refrigerant can be transferred to the subdivision container 160. Once the subdivision container 160 has an appropriate amount, it can be repeatedly placed in another container to fill several subdivision containers with a mixed refrigerant having an appropriate composition ratio. By providing a pressure gauge or a flow meter near the introduction valve 159, it is possible to transfer an appropriate amount to the subdivision container.

<< A mixed refrigerant container with a gas-liquid mixing function equipped with a cylindrical casing, end plates at both ends, a tube that penetrates the end plate, and a coil spring that can vibrate (and swing) inside the cylindrical casing >>
In FIG. 5, end plates 520 and 530 are provided at both ends of the cylindrical casing 510, and the upper tube 60 and the lower tube 70 penetrating the end plates 520 and 530, respectively, and vibration (and rocking) inside the cylindrical casing 510. It is sectional drawing which shows the example of the mixing refrigerant container 501 with the gas-liquid mixing function provided with the coil spring 550 which is possible.
The mixing refrigerant container 501 with a gas-liquid mixing function depicted in FIG. 5 does not have the honeycomb-shaped small chamber described above. Instead, it has a spring 550 inside the cylindrical casing 510. The coil spring 550 is a spirally wound spring (spinning spring), and the outer diameter of the coil spring 550 is smaller than the inner diameter of the cylindrical casing 510. The size of the coil spring 550 is adjusted so that a clearance (for example, 0.1 mm to 5 mm) is formed between the coil spring 550 and the inner wall of the cylindrical casing 510. Due to the clearance, the coil spring 550 can freely vibrate (and slightly swing).

An upper end plate 520 is provided on the upper portion of the cylindrical casing 510, and a lower end plate 530 is provided on the lower portion of the cylindrical casing 510 to form a closed space. This enclosed space has the strength to allow fluid to flow at a high pressure of 10 megapascals. The upper end plate 520 is provided with an upper tube body 60. A lower tube body 70 is provided on the lower end plate. The upper pipe body 60 and the lower pipe body 70 serve as an inlet / outlet for fluid to enter / exit the mixed refrigerant container with a gas-liquid mixing function. The inflowing fluid is placed at a position offset from each other so that it does not flow out directly. The upper pipe body 60 and the lower pipe body 70 are provided with introduction valves 158 and 159, respectively, and the two introduction valves 158 and 159 are closed in a state where the mixed refrigerant is stored.

In the mixed refrigerant container 501 with a gas-liquid mixing function, the mixed refrigerant required for the entire individual (unique) heat pump cycle is stored in an appropriate amount and a suitable composition ratio according to the above-mentioned mixed refrigerant manufacturing method.
The two introduction valves 158 and 159 correspond to those having two entrances and exits that can be connected in the middle of the piping of the heat pump cycle in a state where the opening and closing can be controlled. Then, even when the heat pump cycle is operated, in order to enable the operation with the container attached, the fluid entering from one of the two entrances and exits moves in the container, and then the two. It has a structure that guides it to exit from the other of the doorways. In FIG. 5, for example, the fluid flowing in from the upper tube body 60 vibrates the coil spring 550, hits the lower end plate 530 and rebounds, and vibrates the coil spring 550 again to hit the upper end plate 520. By repeating such an exercise several times, it enters and exits the lower tubular body 70.
On the contrary, when the fluid flows in from the lower tube body 70, it hits the upper end plate 520 and rebounds, vibrates and swings the coil spring 550, hits the lower end plate 520 and bounces, and vibrates and swings the coil spring 550. .. The exercise is repeated several times to enter and exit the upper tubular body 60.
In this way, in order to enable the heat pump cycle to be operated while being attached, the fluid entering from one of the two entrances and exits moves in the container and then, of the two entrances and exits. It has a structure that guides it to exit from the other side of the.

When operating the heat pump cycle, the compressor causes the fluid inside to flow through the pipe at a pressure of 0.2 megapascals to 10 megapascals. The fluid is considered to include a mixed refrigerant and refrigerating machine oil. When the fluid passes through this container, the spring 550 of the mixed refrigerant container 501 vibrates freely up, down, left and right, so that the pulsation of the fluid flowing at high pressure (pulsing pressure fluctuation) is suppressed and the pressure is made uniform. Work to do. Further, since the freely vibrating spring 550 collides with the fluid in various directions, the cluster structure is destroyed by the shearing effect at that time, and the refrigerant and the refrigerating machine oil are uniformly mixed. This not only prevents the mixed refrigerant from functioning in its original proper ratio, but also prevents refrigerating machine oil and the like from sticking to the inside of the heat exchanger provided in the fluid heat pump cycle and hindering heat exchange. It is thought to work to improve heat exchange efficiency. The effect can be increased by the fluid circulating over and over again in the piping path of the heat pump system.

When the mixed refrigerant container 501 with the gas-liquid mixing function is installed in the heat pump cycle, the bypass installation step, the mixed refrigerant container connection step, the evacuation step, the bypass closing step, the filling step, and the operation step are sequentially performed.
The bypass setting step is a step of providing a bypass at a place (a place where a mixing refrigerant container with a gas-liquid mixing function is installed) in the middle of piping of the heat pump cycle.
The mixed refrigerant container connection step is a step of connecting the two entrances and exits of the mixed refrigerant container in the middle of the piping of the portion provided with the bypass. At this time, the path through which the fluid in the mixed refrigerant container passes and the bypass are set to be parallel paths. Three-way valves will be provided at the intersections (two locations) of the bypass and the path of the mixed refrigerant container. Then, by operating the two three-way valves, the bypass part becomes a part constituting the piping of the heat pump cycle and the path in the mixed refrigerant container is closed, or the bypass part is closed and the path in the mixed refrigerant container is closed. Achieve the alternative of being part of the heat pump cycle piping.
In the evacuation step, the path in the mixed refrigerant container is closed by using the two three-way valves, the bypass is made a part of the heat pump cycle, and the bypass is used to evacuate from the heat pump cycle. It is a step. At this time, by connecting a vacuum pump in the middle of the bypass, it is possible to execute evacuation.
The bypass closing step is a step of closing the bypass using a three-way valve to switch the fluid path in the mixed refrigerant vessel to be part of the heat pump cycle piping. At this time, since the introduction valves 158 and 159 are attached to the inlet / outlet (the portion connected to the pipe bodies 60 and 70) in the mixed refrigerant container, the introduction valves 158 and 159 are initially closed. The introduction valves 158 and 159 are configured to be continuously adjustable so that they can be opened and closed in stages.
In the filling step, the valve (introduction valve 158, 159) of the mixed refrigerant container is opened stepwise so as not to adversely affect the equipment such as the compressor in the heat pump cycle, and the mixed refrigerant container is added to the heat pump cycle. It is a step of filling the mixed refrigerant in.
The operation step is a step of operating the heat pump cycle so that the mixed refrigerant passes through the mixed refrigerant container when the heat pump cycle is operated. When the heat pump is operated, the fluid compressed by the compressor moves through the heat pump cycle at high pressure. As the fluid passes through the mixed refrigerant container, the kinetic energy causes the spring 250 to vibrate (and swing) and collide with the fluid in various directions, resulting in a shearing effect. As a result, the mixed refrigerant is made uniform, and the heat pump cycle is circulated at an appropriate composition ratio.

≪End plates are provided at both ends of the cylindrical container, and a tube that penetrates the end plate and a coil spring that can vibrate (and swing) are provided inside the cylindrical part. Mixing refrigerant container with gas-liquid mixing function that connects stacks of conduction units ≫
In FIG. 6, end plates 620 and 630 are provided at both ends of the cylindrical casing 610, and pipes 60 and 70 (upper pipe 60 and lower pipe 70) penetrating the end plates 620 and 630 are provided, respectively. A coil spring 650 capable of vibrating (and oscillating) is provided inside, and a conduction unit body (mixed rotating body 130 shown in FIG. 2, that is, a large-diameter circle) is provided in a pipe body (lower pipe body 70) extending from the lower part. Two sets of small chambers provided between the plate and the small diameter disc, stacked so that the small diameter discs touch each other) 21, 22, 23 stacked three plates are connected to form a gas-liquid mixture. It is a figure which shows an example of the mixed refrigerant container 601 with a function. In FIG. 2, since it is rotated by a motor, it is called a mixed rotating body, but here it is called a conduction unit because it is used in a stationary state.
The mixing refrigerant container 601 with a gas-liquid mixing function depicted in FIG. 6 is provided by connecting three stacks of conduction units (21, 22, 23) to the lower tube 70, which is depicted in FIG. This is different from the mixing refrigerant container 501 with a gas-liquid mixing function. It has a coil spring 650 inside the cylindrical casing 610, its outer diameter is smaller than the inner diameter of the cylindrical casing 610, and between the coil spring 650 and the inner wall of the cylindrical casing 610, The size of the coil spring 650 is adjusted so that a clearance (for example, 0.1 mm to 5 mm) is generated, and the clearance allows the coil spring 650 to freely vibrate (and slightly swing). This is the same as the mixing refrigerant container 501 with the gas-liquid mixing device shown in FIG.
Here, the conduction unit body has a communication hole in the central portion like the mixed rotating body shown in FIG. 2, and even when the three conduction unit bodies 21, 22, 23 are overlapped with each other, the conduction unit body has a communication hole. A fluid can flow through these three conduction units. Some of the fluid passes through the chamber and then into the communication hole, while the other part goes directly through the communication hole.
Further, as shown in FIG. 6, a cylindrical housing encloses a stack of three conduction units. A hole can be appropriately provided in this cylindrical housing to create a fluid flow path. That is, a part of the fluid that goes outward from the communication hole through the small chamber is allowed to go out from the cylindrical housing.

Similar to the mixed refrigerant container 501 with the gas-liquid mixing function, the mixed refrigerant container 601 with the gas-liquid mixing function is formed as a pressure vessel by providing the end plates 620 and 630. The upper pipe body 60 and the lower pipe body 70 function as an inlet / outlet for the fluid, the fluid flowing in from one mouth is staggered so as not to come out directly from the other mouth, and the introduction valve. Similar to the mixed refrigerant container 501 with the gas-liquid mixing function, the 158 and 159 are provided in each, and the two introduction valves are closed in the state where the mixed refrigerant is stored.

It is also possible to store the mixed refrigerant required for the entire individual (unique) heat pump cycle in an appropriate amount and a suitable composition ratio in the mixed refrigerant container 601 with a gas-liquid mixing function according to the above-mentioned mixed refrigerant manufacturing method. It is the same as the mixed refrigerant container 501 with a function.
The two introduction valves 158 and 159 correspond to those having two entrances and exits that can be connected in the middle of the piping of the heat pump cycle in a state where the opening and closing can be controlled. Then, even when the heat pump cycle is operated, in order to enable the operation with the container attached, the fluid entering from one of the two entrances and exits moves in the container, and then the two. It has a structure that guides it to exit from the other of the doorways. In FIG. 6, for example, the fluid flowing in from the upper tube body 60 vibrates the coil spring 650, hits the lower end plate 630 and rebounds, and vibrates the coil spring 650 again to hit the upper end plate 620. After repeating such an exercise several times, it passes through the conduction unit bodies 21, 22, and 23, enters the lower tube body 70, and exits. At this time, when a hole is provided in the cylindrical housing that encloses the conduction unit, the fluid also moves through the hole.
On the contrary, when the fluid flows in from the lower tube body 70, it passes through the conduction unit bodies 21, 22 and 23, hits the upper end plate 620 and rebounds, vibrates and swings the coil spring 650, and reaches the lower end plate 620. It hits and bounces, causing the coil spring 650 to vibrate and swing. The exercise is repeated several times to enter and exit the upper tubular body 60. Similar to the above, when a hole is provided in the cylindrical housing that encloses the conduction unit, the fluid also moves through the hole.
In FIG. 6, a portion in which three conduction unit bodies are stacked is housed in a cylindrical housing, and all the fluid contained in one of the conduction unit bodies passes through the three conduction unit bodies. , It is drawn so that it has a structure that escapes to the other conduction unit. For this cylindrical housing, it is possible to provide some holes so that the fluid can pass through. If the resistance is too high for the fluid to pass through the three conduction units, it can be adjusted by providing some holes in this cylindrical housing. In addition, by providing several holes in the cylindrical housing that encloses the conduction unit, fluid can flow outward from the center of the conduction unit (the part with the communication hole) through the small chamber. The effect of the fluid hitting the wall of the chamber and being sheared is expected.
As described above, in order to enable the mixing refrigerant container 601 with the gas-liquid mixing function to be operated while being attached even when operating the heat pump cycle, the fluid entering from one of the two inlets and outlets is contained in the container. It has a structure that guides it to exit from the other of the two entrances and exits after exercising.

The mixed refrigerant container 601 with a gas-liquid mixing function suppresses pulsation when operating the heat pump cycle, and heat exchange is performed by reducing the size of the particles (clusters) of the mixture of the refrigerant and the refrigerating machine oil by the shearing effect. It is the same as the mixed refrigerant container 501 with the gas-liquid mixing function that the heat exchange efficiency in the vessel is increased and the effect is enhanced by circulating repeatedly.
The procedure for installing the mixed refrigerant container 601 with a gas-liquid mixing function in the heat pump cycle is the same as the above-mentioned mixed refrigerant container 501 with a gas-liquid mixing function.

≪Mixing refrigerant container with gas-liquid mixing function equipped with a conduction unit and an outer tank≫
FIG. 7 has a cylindrical container 785 in which three stacks of conduction units (21, 22, 23) are housed inside, and an outer tank 790 surrounding the outer tank 790, and is a lower pipe body connected to an introduction valve 159. 70 is connected to the lower part of the conduction unit 23, the upper pipe 60 connects the conduction unit 21 and the outer tank 790, and the outer tank 780 is provided with an outer tank pipe 780 connected to the introduction valve 158. It is a figure which shows an example of the mixed refrigerant container 701 with a mixing function.
It is shown in FIG. 6 that three conduction unit bodies 21, 22, and 23 are stacked, that there is a cylindrical container 785 that surrounds the cylindrical container, and that the cylindrical container may be appropriately provided with a hole. It is the same as the mixed refrigerant container 601 with a gas-liquid mixing function.
The outer tank 790 is configured as a pressure vessel that allows, for example, a fluid of 10 megapascals to flow inside. The size of the outer tub 790 is designed to have enough volume to accommodate all the mixed refrigerants required for a separate heat pump cycle. For large heat pump cycles, it is possible to design large ones.

In the mixed refrigerant container 701 with a gas-liquid mixing function, the mixed refrigerant required for the entire individual (unique) heat pump cycle can be stored in an appropriate amount and a suitable composition ratio according to the above-mentioned mixed refrigerant manufacturing method.
Further, the two introduction valves 158 and 159 correspond to those having two inlets and outlets that can be connected in the middle of the piping of the heat pump cycle in a state where the opening and closing can be controlled. Then, even when the heat pump cycle is operated, in order to enable the operation with the container attached, the fluid entering from one of the two entrances and exits moves in the container, and then the two. It has a structure that guides it to exit from the other of the doorways. In FIG. 7, for example, the fluid entering the outer tank 790 from the outer tank pipe 780 via the introduction valve 158 passes from the upper pipe body 60 through the conduction unit bodies 21 and 22, 23, and introduces the lower pipe body 70. Exit through valve 159. Further, the other part of the fluid flowing from the upper pipe body 60 into the conduction unit bodies 21, 22, 23 passes through a large number of small chambers constituting the conduction unit body and passes through a hole made in the cylindrical container 785. After returning to the outer tank 790 and passing through the conduction unit body 21, 22, 23 from the upper pipe body 60 again several times, the pipe exits through the lower pipe body 70 and the introduction valve 159.
On the contrary, when the fluid flows in from the lower tubular body 70, a part of the fluid enters the outer tank 790 through the conduction unit bodies 21, 22, 23, and the upper tubular body 60, and is one of the other fluids. The unit passes through the small chambers of the conduction unit bodies 21, 22, and 23, and enters the outer tank 790 through the holes provided in the cylindrical container 785. Then, the fluid in the outer tank 790 goes out through the outer tank pipe 780 and the introduction valve 158.
The number of holes provided in the cylindrical container 785 is adjusted so that the shearing effect of the fluid by passing through the chambers of the conduction unit bodies 21 and 22 and 23 appears regardless of the direction in which the fluid flows. ..
In this way, in order to enable the heat pump cycle to be operated while being attached, the fluid entering from one of the two entrances and exits moves in the container and then, of the two entrances and exits. It has a structure that guides it to exit from the other side of the.

When operating the heat pump cycle, the compressor causes the fluid inside to flow through the pipe at a pressure of 0.2 megapascals to 10 megapascals. The fluid is considered to include a mixed refrigerant and refrigerating machine oil. When the fluid passes through this container, the conduction unit bodies 21, 22, 23 of the mixed refrigerant container 701 act so that the fluid collides with the walls of many small chambers and passes through, so that the pulsation of the fluid flowing at high pressure. It works to make the pressure uniform by suppressing (pulsing pressure fluctuations). Furthermore, since the walls of the chamber collide with the fluid in various directions, the shearing effect at that time destroys the cluster structure and uniformly mixes the refrigerant and the refrigerating machine oil. This not only prevents the mixed refrigerant from functioning in its original proper ratio, but also prevents refrigerating machine oil and the like from sticking as large clusters inside the heat exchanger provided in the heat pump cycle and hindering heat exchange. It is thought that it works to improve the heat exchange efficiency of. The effect can be increased by the fluid circulating over and over again in the piping path of the heat pump system.

When the mixed refrigerant container 701 with the gas-liquid mixing function is installed in the heat pump cycle, it can be carried out in the same manner as the mixed refrigerant containers 501 and 601 with the gas-liquid mixing function described above.

≪With a gas-liquid mixing function that has a cylindrical container that houses three stacks of conduction units inside, a coil spring that can vibrate (and swing) around it, and an outer tank that surrounds it. It is a figure which shows an example of a mixed refrigerant container ≫
FIG. 8 shows a cylindrical container 865 in which three stacks of conduction units 21, 22, and 23 are stacked, a coil spring 850 capable of vibrating (and swinging) surrounding the cylindrical container 865, and a coil spring 850. It is a figure which shows an example of the mixing refrigerant container 801 with a gas-liquid mixing function which has the middle tank 875 surrounding the middle tank 875, and the outer tank surrounding the periphery of the middle tank 875.
It is shown in FIG. 6 that three conduction unit bodies 21, 22, and 23 are stacked, that there is a cylindrical container 865 surrounding the cylindrical container, and that the cylindrical container may be appropriately provided with a hole. This is the same as the mixed refrigerant container 601 with a gas-liquid mixing function and the mixed refrigerant container 701 with a gas-liquid mixing function shown in FIG. 7.
The outer tank 890 is configured as a pressure vessel that allows, for example, a fluid of 10 megapascals to flow inside. The size of the outer tub 890 is designed to be large enough to accommodate all the mixed refrigerants required for a separate heat pump cycle. For large heat pump cycles, it is possible to design large ones.

In the mixed refrigerant container 801 with a gas-liquid mixing function, the mixed refrigerant required for the entire individual (unique) heat pump cycle can be stored in an appropriate amount and a suitable composition ratio according to the above-mentioned mixed refrigerant manufacturing method.
Further, the two introduction valves 158 and 159 correspond to those having two inlets and outlets that can be connected in the middle of the piping of the heat pump cycle in a state where the opening and closing can be controlled. Then, even when the heat pump cycle is operated, in order to enable the operation with the container attached, the fluid entering from one of the two entrances and exits moves in the container, and then the two. It has a structure that guides it to exit from the other of the doorways. In FIG. 8, for example, a part of the fluid entering the outer tank 890 from the outer tank pipe 880 via the introduction valve 158 enters the middle tank 875 from the upper pipe body 60, and vibrates and swings the coil spring 850. After repeatedly hitting the top and bottom of the middle tank and bouncing back several times, it passes through the conduction unit bodies 21 and 22, 23, and exits through the lower pipe body 70 and the introduction valve 159. Further, the other part of the fluid flowing from the upper pipe body 60 into the conduction unit bodies 21, 22, 23 passes through a large number of small chambers constituting the conduction unit body and passes through a hole made in the cylindrical container 865. After returning to the middle tank 875, returning to the outer tank 890 through the hole made in the middle tank 875, and passing through the conduction unit body 21, 22, 23 from the upper pipe body 60 again, several times. , The lower tube 70, exits through the introduction valve 159.
On the contrary, when the fluid flows in from the lower tubular body 70, a part of the fluid enters the outer tank 790 through the conduction unit bodies 21, 22, 23, and the upper tubular body 60, and is one of the other fluids. The unit passes through the small chambers of the conduction unit bodies 21, 22, and 23, and enters the outer tank 890 through the holes provided in the cylindrical container 785. Then, the fluid in the outer tank 890 goes out through the outer tank pipe 880 and the introduction valve 158.
How many holes should be made in the cylindrical container 865 and how many holes should be made in the middle tank 875 pass through the small chambers of the conduction unit 21, 22, 23 regardless of the direction in which the fluid flows. It is adjusted so that the shearing effect of the fluid appears.
In this way, in order to enable the heat pump cycle to be operated while being attached, the fluid entering from one of the two entrances and exits moves in the container and then, of the two entrances and exits. It has a structure that guides it to exit from the other side of the.

When operating the heat pump cycle, the compressor causes the fluid inside to flow through the pipe at a pressure of 0.2 megapascals to 10 megapascals. The fluid is considered to include a mixed refrigerant and refrigerating machine oil. As the fluid passes through this container, the coil spring 850 acts to suppress the pulsation of the fluid. Further, since the conduction unit bodies 21, 22, and 23 of the mixed refrigerant container 801 act so as to allow the fluid to collide with the walls of many small chambers and pass through, the pulsation of the fluid flowing at high pressure (fluctuation of pulsating pressure). It works to suppress the pressure and make the pressure uniform. Furthermore, since the walls of the chamber collide with the fluid in various directions, the shearing effect at that time destroys the cluster structure and uniformly mixes the refrigerant and the refrigerating machine oil. This not only prevents the mixed refrigerant from functioning in its original proper ratio, but also prevents refrigerating machine oil and the like from sticking as large clusters inside the heat exchanger provided in the heat pump cycle and hindering heat exchange. It is thought that it works to improve the heat exchange efficiency of. The effect can be increased by the fluid circulating over and over again in the piping path of the heat pump system.

When the mixed refrigerant container 801 with the gas-liquid mixing function is installed in the heat pump cycle, it can be carried out in the same manner as the mixed refrigerant containers 501, 601 and 701 with the gas-liquid mixing function described above.

≪A cylindrical container containing three stacks of conduction units inside and an outer tank surrounding the inner tank are provided, and vibration (and rocking) occurs inside the outer tank and outside the cylindrical container. It is a figure which shows an example of a mixing refrigerant container with a gas-liquid mixing function provided with a possible coil spring ≫
FIG. 9 shows a cylindrical container 965 in which three stacks of the conduction unit bodies 21, 22, and 23 are stacked inside, and an outer tank 990 that surrounds the outer tank 990. The inside of the outer tank 990 is a cylinder. It is a figure which shows an example of the mixing refrigerant container 901 with the gas-liquid mixing function provided with the coil spring 950 which can vibrate (and swing) on the outside of the container 965.
It is shown in FIG. 6 that three conduction unit bodies 21, 22, and 23 are stacked, that there is a cylindrical container 965 surrounding the cylindrical container, and that the cylindrical container may be appropriately provided with a hole. This is the same as the mixed refrigerant container 601 with a gas-liquid mixing function, the mixed refrigerant container 701 with a gas-liquid mixing function shown in FIG. 7, and the mixed refrigerant container 801 with a gas-liquid mixing function shown in FIG.
The outer tank 990 is configured as a pressure vessel that allows, for example, a fluid of 10 megapascals to flow inside. The size of the outer tub 990 is designed to have enough volume to accommodate all the mixed refrigerants required for the individual heat pump cycles. For large heat pump cycles, it is possible to design large ones.

In the mixed refrigerant container 901 with a gas-liquid mixing function, the mixed refrigerant required for the entire individual (unique) heat pump cycle can be stored in an appropriate amount and a suitable composition ratio according to the above-mentioned mixed refrigerant manufacturing method.
Further, the two introduction valves 158 and 159 correspond to those having two inlets and outlets that can be connected in the middle of the piping of the heat pump cycle in a state where the opening and closing can be controlled. Then, even when the heat pump cycle is operated, in order to enable the operation with the container attached, the fluid entering from one of the two entrances and exits moves in the container, and then the two. It has a structure that guides it to exit from the other of the doorways. In FIG. 9, for example, a part of the fluid entering the outer tank 990 from the outer tank pipe 980 via the introduction valve 158 vibrates and swings the coil spring 850, and the conduction unit body 21 is sent from the upper pipe body 60. , 22, 23, and exits through the lower tubular body 70 and the introduction valve 159. Further, the other part of the fluid flowing from the upper pipe body 60 into the conduction unit bodies 21, 22, 23 passes through a large number of small chambers constituting the conduction unit body and passes through a hole made in the cylindrical container 965. After returning to the outer tank 990 and passing through the conduction unit body 21, 22, 23 from the upper pipe body 60 again several times, the pipe exits through the lower pipe body 70 and the introduction valve 159.
On the contrary, when the fluid flows in from the lower tubular body 70, a part of the fluid enters the outer tank 990 through the conduction unit bodies 21, 22, 23, and the upper tubular body 60, and is one of the other fluids. The unit passes through the small chambers of the conduction unit bodies 21 and 22, 23 and enters the outer tank 990 through the holes provided in the cylindrical container 965. Then, the fluid in the outer tank 990 goes out through the outer tank pipe 980 and the introduction valve 158.
The number of holes provided in the cylindrical container 965 is adjusted so that the shearing effect of the fluid by passing through the chambers of the conduction unit 21, 22, 23 is exhibited regardless of the direction in which the fluid flows. ..
In this way, in order to enable the heat pump cycle to be operated while being attached, the fluid entering from one of the two entrances and exits moves in the container and then, of the two entrances and exits. It has a structure that guides it to exit from the other side of the.

When operating the heat pump cycle, the compressor causes the fluid inside to flow through the pipe at a pressure of 0.2 megapascals to 10 megapascals. The fluid is considered to include a mixed refrigerant and refrigerating machine oil. As the fluid passes through this container, the coil spring 950 acts to suppress the pulsation of the fluid. Further, since the conduction unit bodies 21, 22, and 23 of the mixed refrigerant container 901 act so as to allow the fluid to collide with the walls of many small chambers and pass through, the pulsation of the fluid flowing at high pressure (fluctuation of pulsating pressure). It works to suppress the pressure and make the pressure uniform. Furthermore, since the walls of the chamber collide with the fluid in various directions, the shearing effect at that time destroys the cluster structure and uniformly mixes the refrigerant and the refrigerating machine oil. This not only prevents the mixed refrigerant from functioning at the original proper ratio, but also prevents refrigerating machine oil and the like from sticking to each other as large clusters inside the heat exchanger provided in the heat pump cycle and hindering heat exchange. It is thought to work to improve the heat exchange efficiency of the refrigerant. The effect can be increased by the fluid circulating over and over again in the piping path of the heat pump system.

The work of installing the mixed refrigerant container 901 with the gas-liquid mixing function in the heat pump cycle can be performed in the same manner as the above-mentioned mixed refrigerant container 501, 601, 701, 801 with the gas-liquid mixing function.

≪Heat pump system≫
The apparatus of the present invention is a heat pump that exchanges heat, such as a heat pump that uses electricity as energy and a heat pump that uses gas as energy, and can be widely used in a heat pump that circulates a refrigerant and refrigerating machine oil.
The heat pump system includes various forms such as an air conditioner, a refrigerator, a refrigerator, a water heater, a freezer warehouse, and a chiller. It is applicable not only to those that consume electric power but also to those that use other energy such as gas heaton. Moreover, not only when designing a new heat pump system, it is also possible to additionally install it in an existing heat pump system later.
A heat pump system is a device that draws heat from a cold object and gives it to a hot object. It is used for the purpose of further cooling cold objects and further warming hot objects. A device that performs both cooling and heating by switching is also a heat pump.
The fluid referred to in the present specification is a fluid that circulates in a compressor, a pipe, a heat exchanger, and the like in a heat pump cycle. Includes refrigerant and refrigerating machine oil. The fluid is in a gas state, a liquid state, or a gas-liquid mixture state depending on which process in the heat pump cycle. CFCs are no longer used as refrigerants from the viewpoint of protecting the global environment, and alternative CFCs are used.

FIG. 10 is a diagram showing the functions of a mixed refrigerant container with a gas-liquid mixing function in a heat pump system (heat pump cycle) during cooling and heating, respectively.
In FIG. 10, a heat pump cycle is schematically shown by taking a general air conditioner as an example. The device according to the present invention is installed in parallel with the bypass 40, and the piping in the heat pump cycle is provided by the action of the three-way valves 42 and 43. It shows how the flowing fluid can be selected to pass through the bypass 40 or the mixed refrigerant container 160 (with gas-liquid mixing function) (501, 601, 701, 801, 901). .. FIG. 10 (a) shows that the direction of the fluid flow during cooling is counterclockwise. FIG. 10 (b) shows that the direction of the fluid flow during heating is clockwise.

In terms of cooling, the heat pump cycle includes four components: a compression unit 83, a condensation unit (outdoor unit 84), an expansion unit 81, and an evaporation unit (indoor unit 82). The fluid circulates in the sealed piping that connects these components. The black arrows in FIGS. 10 (a) and 10 (b) indicate the direction of fluid flow. The white arrows indicate the heat transfer in the condensing section (outdoor unit 84 during cooling, indoor unit 82 during heating) and evaporation section (indoor unit 82 during cooling, outdoor unit 84 during heating), which are heat exchangers. Shows. Dashed arrows indicate the transfer of heat between indoors and outdoors. LT is low temperature and HT is high temperature.

In FIG. 10, a mixing refrigerant container 160 (501,601,701,801,901) (with a gas-liquid mixing function) is installed on a pipe connecting the outdoor unit 84 and the expansion portion 81. The location where the mixing refrigerant container 160 (501,601,701,801,901) (with gas-liquid mixing function) is installed may be any position on the piping of the heat pump cycle. The installation position in FIG. 10 is an example.

In FIGS. 10 (a) and 10 (b), an upper three-way valve 42 and a lower three-way valve 43 are provided on the piping of the heat pump cycle, and they are an upper solenoid valve or an upper electric valve (not shown) and a lower solenoid valve, respectively. Alternatively, switching can be performed by a lower electric valve (not shown). The switching between the two valves is performed by a control device (not shown), and as a result, the fluid in the pipe passes through the bypass pipe 40 or the mixing refrigerant container 160 (with gas-liquid mixing function) 160 (501,6011). It is possible to selectively select whether to pass through 701,801,901).
A three-way valve is a valve that has fluid inlets and outlets in three directions. Also called a three-way valve. A solenoid valve has a mechanism for opening and closing a valve (valve) by moving an iron piece called a plunger using the magnetic force of an electromagnet (solenoid). Also called a solenoid valve or solenoid valve. An electric valve opens and closes a valve with an electric motor.

≪Cycle during indoor cooling≫
In the indoor cooling cycle of FIG. 1A, the compression unit 83 includes a compressor for compressing the low-pressure gas refrigerant in the closed container. In the closed container containing the compressor, an oil reservoir (bottom part in the figure) for storing refrigerating machine oil (compressor oil) is usually provided. The gaseous refrigerant is compressed into a high pressure and higher temperature gas. This gaseous refrigerant is mixed with the refrigerating machine oil and then discharged from the compression unit 83 to the condensing unit (outdoor unit 84). The condensing part includes a capacitor. During cooling, the outdoor unit 84 exchanges heat as a condensing unit. The high-temperature and high-pressure gas fluid that has flowed into the condensing portion is condensed by releasing heat to the outside to become a low-temperature liquid fluid. This liquid fluid is ideally a liquid refrigerant in which refrigerating machine oil is dissolved (or uniformly mixed).

However, when the refrigerant changes from a gas to a liquid in the condensing unit (outdoor unit 84), a part of the refrigerating machine oil may separate without being dissolved (uniformly mixed) in the refrigerant. In addition, the oil phase of the fused refrigerating machine oil may confine the liquid refrigerant. Further, the refrigerant that has almost passed through the condensing portion (outdoor unit 84) may remain as a high-temperature gas. Due to such a phenomenon, the liquid fluid flowing out from the condensing unit (outdoor unit 84) may include the separated refrigerating machine oil, the liquid refrigerant captured in the oil phase of the refrigerating machine oil, and / or the gaseous refrigerant.

The separated refrigerating machine oil is said to reduce the efficiency of heat exchange because it stays in various parts of the heat exchanger during heat exchange in the condensing unit (outdoor unit 84). Using the mixed refrigerant container with gas-liquid mixing function 501,601,701,801,901 according to the present invention, the fluid passes between the upper three-way valve 42 and the lower three-way valve 43 through the mixed refrigerant container with gas-liquid mixing function. In doing so, the fluid vibrates and swings the coil springs or collides with the walls of the honeycomb-shaped chamber, causing the shear effect to mix the refrigerating machine oil and refrigerant in a finely divided state. Therefore, since the fluid repeatedly circulates in the heat pump, the refrigerating machine oil does not stay in the heat exchanger, and the efficiency of heat exchange is improved.

At the time of indoor cooling shown in FIG. 10A, the mixing refrigerant container with gas-liquid mixing function of the present invention 501, 601, 701, 801, 901 is inserted between the condensing portion (outdoor unit 84) and the expanding portion 81. There is. The introduction valve 158 is connected to the outlet side of the condensing portion, which is the outdoor unit 84, and the introduction valve 159 is connected to the inlet side of the expansion portion 81. When the fluid flowing out from the condensing portion 84 is guided to the introduction valve 158 by the upper three-way valve 42, a sufficient shearing effect is given inside the mixing refrigerant container with a gas-liquid mixing function, and the fluid is mixed. As a result, the separated refrigerating machine oil is uniformly mixed with the liquid refrigerant, the liquid solvent captured in the oil phase of the refrigerating machine oil is released, and the temperature of the remaining gaseous refrigerant drops to become the liquid refrigerant. After that, the fluid flowing out of the mixing refrigerant container 501,601,701,801,901 with a gas-liquid mixing function is sent to the expansion unit 81.

The expansion portion 81 includes an expansion valve, a capillary tube, or the like. The low-temperature and high-pressure liquid fluid becomes a low-temperature and even lower-temperature liquid by being passed through a narrow hole or a pipe. After that, this fluid is sent to the evaporation unit (indoor unit 82). The evaporation unit is equipped with an evaporator. During indoor cooling shown in FIG. 10A, the indoor unit 82 exchanges heat as an evaporation unit. The low-temperature low-pressure liquid fluid that has flowed into the evaporation section evaporates by absorbing heat from the outside and becomes a high-temperature gas fluid. This cools the air in the room. After that, the gas fluid is returned to the compression unit 83.

Even when heat exchange is performed in the indoor unit 82 (evaporation unit), the refrigerating machine oil and the refrigerant are mixed in a finely divided state due to the shearing effect as described above, so that the efficiency of heat exchange is improved.

≪Cycle during room heating≫
In the cycle during indoor heating in FIG. 10 (b), the circulation direction of the fluid is opposite to that during cooling in FIG. 10 (a). Well-known valves (eg, four-way valves) are used in heat pump systems to switch the direction of fluid circulation (illustration and description omitted). At the time of heating, the high-temperature and high-pressure gas fluid discharged from the compression unit 83 is sent to the indoor unit 82 that exchanges heat as a condensing unit. The high-temperature and high-pressure gas fluid that has flowed into the condensing unit (indoor unit 82) is condensed by releasing heat to the outside to become a low-temperature liquid fluid. This warms the air in the room.

Here, when the refrigerant changes from gas to liquid in the condensing section (indoor unit 82), the liquid fluid flowing out from the condensing section is the separated refrigerating machine oil and refrigerating machine oil, as in the cooling cycle of FIG. 10 (a). May contain liquid and / or gaseous refrigerants trapped in the oil phase of. At the time of heating, the liquid fluid flowing out from the condensing unit (indoor unit 82) is further sent to the expansion unit 81 to become a low-pressure and lower-temperature liquid. Even after passing through the expansion portion 81, the separated refrigerating machine oil, the captured liquid refrigerant and / or the gaseous refrigerant may remain.
When the refrigerating machine oil and the refrigerant are mixed in a miniaturized state by the shearing effect as described above, it is expected that the efficiency of heat exchange will be improved.

At the time of indoor heating shown in FIG. 10B, the mixed refrigerant container with a gas-liquid mixing function of the present invention is installed between the expansion unit 81 and the evaporation unit (outdoor unit 84). The introduction valve 159 of the mixing refrigerant container with the gas-liquid mixing function is connected to the outlet side of the expansion unit 81, and the introduction valve 158 of the mixing refrigerant container with the gas-liquid mixing function is connected to the inlet side of the evaporation unit which is the outdoor unit 84. Has been done. The fluid flowing out from the expansion unit 81 is sufficiently uniformly mixed in the mixing refrigerant container with the gas-liquid mixing function. The separated refrigerating machine oil is uniformly mixed with the liquid refrigerant, the liquid solvent captured in the oil phase of the refrigerating machine oil is released, and the temperature of the remaining gaseous refrigerant drops to become the liquid refrigerant. After that, the fluid flowing out of the mixing refrigerant container with the gas-liquid mixing function is sent to the evaporation unit (outdoor unit 84).

During the indoor heating shown in FIG. 10B, the outdoor unit 84 exchanges heat as an evaporation unit. The low-temperature low-pressure liquid fluid that has flowed into the evaporation section evaporates by absorbing heat from the outside and becomes a high-temperature gas fluid. After that, the gas fluid is returned to the compression unit 83. When the refrigerating machine oil and the refrigerant are mixed in a state of being miniaturized by the shearing effect as described above, it is expected that the efficiency of heat exchange will be improved even in the heat exchange in the outdoor unit during heating.

As shown in FIGS. 10A and 10B, the mixing refrigerant container with the gas-liquid mixing function of the present invention is inserted on the path of the piping constituting the heat pump system. Since the actual pipe is formed by connecting a plurality of pipe members, for example, by removing one pipe member and replacing and connecting with the mixing refrigerant container with the gas-liquid mixing function of the present invention, the gas-liquid mixing function can be achieved. The mixed refrigerant container can be easily attached. As shown in FIGS. 10 (a) and 10 (b), for example, it can be installed in an outdoor pipe near the outdoor unit. At this time, the pipe is made so as to draw a smooth curve of an appropriate size so that the fluid in the pipe can move smoothly.
By providing the bypass 40 and providing the three-way valves 42 and 43 as shown in FIG. 10, the work of replacing the mixed refrigerant container with the gas-liquid mixing function with a new one can be easily performed. This is useful whether the composition of the refrigerant is to be changed or the structure constituting the gas-liquid mixing function is to be changed.

In FIGS. 10 (a) and 10 (b) described above, an example in which the mixed refrigerant container with the gas-liquid mixing function of the present invention is applied to the basic form of the heat pump system is shown. There are many applications in an actual heat pump system. The mixed refrigerant container with a gas-liquid mixing function of the present invention is also applicable to a heat pump system in which various components are added to the basic form. For example, even in a system provided with a gas-liquid separator that separates a refrigerant in a gas-liquid two-phase state, the mixed refrigerant container with the gas-liquid mixing function of the present invention can be used in combination. Further, for example, in a system provided with an ejector and a gas-liquid separator instead of the expansion portion, the mixing refrigerant container with the gas-liquid mixing function of the present invention can be used in combination.

≪Correspondence to the opposite direction of fluid flow between cooling and heating≫
For the mixing refrigerant container 601,701,801,901 with a gas-liquid mixing function that uses three conduction unit bodies stacked on top of each other, the fluid flow can be achieved by appropriately making holes in the cylindrical container and middle tank surrounding the conduction unit body. As mentioned above, it is possible to adjust so that the same effect can be obtained even when the directions of are reversed.
If it is difficult to achieve the same effect when the direction of the fluid flow is opposite, a combination of a four-way valve and an electric valve (solenoid valve) allows gas-liquid mixing during heating and cooling. A modified embodiment is also possible in which the connection of the pipes is changed so that the directions of the fluid flows in the functional mixed refrigerant vessel are the same.

≪Pitch of coil spring≫
The coil springs 550, 650, 850, and 950 described above are, for example, spiral springs having an unequal pitch in which the pitch near the spring mounting portion is narrow and the pitch in the unfixed intermediate portion is widened, that is, wide → It is preferable to set narrow → wide or narrow → wide → narrow. It is thought that the action of the coil spring is expected to have a stirring effect and a shearing effect by ultrasonic waves by emitting various sounds (ultrasonic waves), so it is desirable to emit sounds of various frequencies. be.

≪Material suitable for pressure vessel≫
The material of each component of the mixing refrigerant container with the gas-liquid mixing function of the present invention may be any material that can be used for the piping of the heat pump system, and is not particularly limited, but an appropriate material for the pressure vessel can be used. For example, it is made of steel.

<Action and mechanism of coil spring>
It is thought that the action and mechanism can be explained by the overtone resonance (scaling resonance) of sound.
When a fluid of several megapascals flows into the mixing refrigerant container with the gas-liquid mixing function according to the present invention, an impact is applied to the coil spring. Then, the impact causes the spring to vibrate and swing. By transmitting the vibration and fluctuation, sound (not limited to the audible range, including the possibility of lower sound or higher sound) is generated. Due to the continuous inflow of fluid, this noise also continues to occur.
On the other hand, when the refrigerant and the refrigerating machine oil are mixed, a sound is also generated when the clusters of molecules collide with each other. These two sounds can be in a harmonic relationship. The harmonics (harmonics) of the sound generated by the vibration and swing of the spring are harmonic resonance (scaling resonance) when the clusters of the refrigerant and refrigerating machine oil molecules collide with each other. As a result, the fluid is mixed and agitated, and eventually liquefaction is promoted.
Here, scaling resonance is a phenomenon of resonance in harmonics (harmonics) several tens of octaves higher. This is the concept used in "Protein Music" (Chikuma Primer Books by Yoichi Fukagawa).
Resonance and resonance are similar concepts, but in the present specification, they will be considered separately. For example, when two strings fixed to the same wooden frame (solid) vibrate one, the other also vibrates. In this case, the vibration is transmitted through a solid called a wooden frame, so that it is a resonance. On the other hand, it is resonance that the sound is transmitted through water, air, etc. (fluid) and vibrates as a result.
In the case of the liquefaction promoting device according to the present invention, vibration is transmitted from the spring to the refrigerant molecules and the refrigerating machine oil molecules via the fluid. Therefore, it should be called resonance. Therefore, it is considered that the harmonic resonance or scaling resonance of the sound is functioning.
Focusing on the macroscopic behavior of the fluid in the liquefaction promoting device according to the present invention, the fluid acts to vibrate and swing the spring by giving an impact to the spring due to its high pressure. On the other hand, focusing on the microscopic behavior of the fluid, the refrigerant and refrigerating machine oil clusters (a mass of several molecules stuck together) contained in the fluid are forced to reduce the size of the clusters by harmonic resonance or scaling resonance. Receive. As a result, under the shearing effect, the refrigerant and refrigerating machine oil make the cluster smaller and perform uniform mixing.

<Effect>
A fluid containing a refrigerant and refrigerating machine oil is passed through a mixing refrigerant container with a gas-liquid mixing function according to the present invention at a pressure of 0.2 megapascals to 10 megapascals. As a result, the coil spring of the mixing refrigerant container with the gas-liquid mixing function according to the present invention receives an impact and causes vibration and rocking. This vibration and oscillation causes waves of various frequencies. Waves containing many harmonics are generated. If this wave is regarded as a sound wave, many harmonics can be regarded as many overtones. These harmonics act on the refrigerant and refrigerating machine oil clusters at the molecular level, resulting in a shearing effect that reduces the size of the mass. At this time, it is considered that the phenomenon of resonance due to harmonics or resonance due to overtones occurs. That is, in the spring, harmonic resonances or harmonic resonances at the molecular level also occur continuously in response to vibrations and oscillations. As a result, the shearing effect is evenly distributed throughout the refrigerant and refrigerating machine oil.
In addition, the honeycomb-shaped chamber collides with the fluid in various directions and exerts a shearing effect that reduces the size of the cluster.
In this way, the refrigerant and the refrigerating machine oil are uniformly mixed.
Due to the shearing effect of the mixing refrigerant container with gas-liquid mixing function, the refrigerant and refrigerating machine oil are uniformly mixed. Then, the heat exchange efficiency of CFC substitutes can be improved. The mixed refrigerant container with a gas-liquid mixing function of the present invention can be effective regardless of the types of the refrigerant and the refrigerating machine oil used in the heat pump cycle. In particular, by applying it to an alternative chlorofluorocarbon, which is inferior in compatibility with refrigerating machine oil as compared with a specific chlorofluorocarbon, the heat exchange efficiency of the alternative chlorofluorocarbon can be significantly improved.
Further, the mixed refrigerant container with a gas-liquid mixing function of the present invention is suitable as a container that can store a mixed refrigerant adopted as an alternative chlorofluorocarbon at an appropriate composition ratio even though it may be difficult to uniformly mix the mixture. Can provide things.

<Power reduction, energy reduction>
The device of the present invention is a heat pump that exchanges heat, such as a heat pump that uses electricity as energy and a heat pump that uses gas as energy, and can be widely used in a heat pump that circulates a refrigerant and refrigerating machine oil to reduce energy. It has an effect.

21, 22, 23 Conduction unit 40 Bypass 42, 43 Three-way valve 60, 70 Pipe (upper pipe, lower pipe)
81 Expansion unit 82 Indoor unit (evaporation unit during cooling, condensation unit during heating)
83 Compression unit 84 Outdoor unit (condensation unit during cooling, condensation unit during heating)
101 Gas-liquid mixing device (with rotating part) 110 Stirring tank 120 Rotating drive source 125 Rotating shaft 130 Mixing rotating body 131 Large-diameter disk 132 Small-diameter disk 150 Raw material container 151 Gas phase valve 153 Liquid phase valve 158,159 Introduction valve 160 Subdivision container 501 (using a spring) Mixing refrigerant container with gas-liquid mixing function 510 Cylindrical casing 520 Upper end plate 530 Lower end plate 550 Coil spring 601 (using a spring and providing a conduction unit) With a gas-liquid mixing function Mixing refrigerant container 610 Cylindrical casing 620 Upper end plate 630 Lower end plate 650 Coil spring 701 (equipped with a conduction unit and an outer tank) Mixing refrigerant container with gas-liquid mixing function 780 Outer tank piping 785 Cylindrical container 790 Outer tank 801 (leading Mixing refrigerant container with gas-liquid mixing function (equipped with flow unit, coil spring, middle tank, outer tank) 850 Coil spring 865 Cylindrical container 875 Middle tank 880 Outer tank piping 890 Outer tank 901 (conduction unit, coil spring, Mixing refrigerant container with gas-liquid mixing function (with outer tank) 950 Coil spring 965 Cylindrical container 980 Outer tank piping 990 Outer tank

Claims (2)

A raw material container that stores the mixed refrigerant in a state of being separated into a liquid phase and a gas phase,
A gas-liquid mixing device that uniformly mixes the liquid phase and the gas phase,
A liquid phase valve that introduces the liquid phase of the mixed refrigerant from the raw material container into the gas-liquid mixing device.
A gas phase valve that introduces the gas phase of the mixed refrigerant from the raw material container into the gas-liquid mixing device.
A mixing refrigerant manufacturing apparatus having an introduction valve for transferring the mixed refrigerant in the gas-liquid mixing device to a subdivision container after operating the gas-liquid mixing device for a predetermined time. A mixed refrigerant manufacturing method for manufacturing a mixed refrigerant using the mixed refrigerant manufacturing apparatus according to claim 1.
The step of introducing the liquid phase and the gas phase of the mixed refrigerant into the gas-liquid mixer, respectively.
The step of operating the gas-liquid mixer for a predetermined time and
A method for producing a mixed refrigerant, which comprises a step of transferring the mixed refrigerant in the gas-liquid mixing device to a subdivided container and filling the mixture.

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